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Sentence analysis
5Spans
Sentence
Span Details
体を惜しん
be lazy; spare oneself; avoid effort-> 体を惜しむexpression, verb
でいては
ongoing or resultant state-> ているgrammar
上達
improvement in skill; progress; getting better; upward communication of public opinion; conveying lower-level views to superiorsnoun, suru verb
し
light/support verb with a noun or noun-like phrase-> するgrammar
ない。
negative auxiliarygrammar